Happy Saint David's Day! Or in Welsh, "Dydd Gwŷl Dewi Sant Hapus!" The Irish say "Kiss me, I'm Irish" for St. Patrick's Day. I'm not sure what the Welsh say. But you can raise a toast, perhaps of the fine single malt Welsh whisky, Penderyn (available in Edmonton at Chateau Louis Liquor Store), saying "cheers" in Welsh, "Iechyd da".